| 摘要 |
Apparatus (10) for extracting energy from flowing water typically a tidal stream flow, the apparatus including a float assembly (41) having pair of spaced buoyant bodies (42) between which an elongated flow passage or tunnel (47) is located with an impeller assembly (61) in the flow passage (47) which can drive an electrical generator (76) on the float assembly (41). The bodies (42) include or define ballast tanks which can be filled or partially filled with water to submerge the flow passage or tunnel (47). |
